However, such equations often have extraneous
answers, so we must check. Logarithms may
be taken only of positive numbers.
Checking
We can see that on the left side, x must be negative
to insure that a logarithm is being taken only of a
positive number. However that causes both terms on
the right to be logarithms of negative numbers.
So we must discard
Checking
Which checks.
The only solution is
Edwin
